From somebody who knows:
Hello Kull. Fyi.
The differences between the standard and extended maps are de minimis so far as the AI is concerned. What works for standard will work for extended. So …
Any and all AI files for regular GC scenarios work unconditionally, playing either side, with any and all Babes Lite scenarios, no matter the map.
Any and all AI files for regular GC scenarios work unconditionally, playing against the Japanese computer, with any and all DBB scenarios, no matter the map.
Any and all AI files for regular GC scenarios work “kinda ok enough”, playing against the Allied computer, with any and all DBB scenarios, no matter the map.
For Andy’s Ironman AI files, it depends on how much he changed unit slot positions in the corresponding scenario data files. If he didn’t change slot positions much, but just added “more stuff”, those AI files will work just fine with all Babes as described above. If he did change slot positions a lot, as well as adding more stuff, it will show as “kinda ok enough”.
I bolded the one which seems to be your situation. However, since it also sounds like you didn't update your AI, you probably have the 2010 files. Those were improved in 2012. Also, there are 16 variants of the 2010 files, and only the first 6 are somewhat historical.
So yes, it's possible to get a better AI, but you'll need to read up on how to do that (it's in the link)
The Ironman scenarios have numerous slot adds, so the Ironman AI files require the respective Ironman scenario to work.